Interstate 44 in Missouri
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Interstate 44 in Missouri

Interstate 44 marker

Interstate 44
Route information
Maintained by MoDOT
Length 293.183 mi[1] (471.832 km)
Existed 1956 - present
Major junctions
West end / near Joplin
East end in St. Louis
Highway system

Interstate 44 (I-44) in the U.S. state of Missouri runs northeast from the Oklahoma state line near Joplin to I-70 in downtown St. Louis. It runs for about 293 miles (472 km) in the state.

Route description

I-44 approached by U.S. 71 (now part of I-49) just south of Joplin.

Interstate 44 enters Missouri in Newton County at the eastern terminus of the Will Rogers Turnpike, 200 yards south of the Kansas state line. The first interchange in Missouri is the eastern terminus of both U.S. Highway 166 and U.S. Highway 400. This highway next goes through southern Joplin and then begins a concurrency with Interstate 49/U.S. Highway 71 at Exit 11 just after entering Jasper County. The freeway turns to a more easterly heading (the old route of US 166), and then I-49/U.S. 71 splits off to the north at Exit 18.

I-44 next enters Lawrence County. Near Mount Vernon, the highway curves to the northeast. The section of highway to Halltown is a completely new highway, not supplanting any previous highways. At Halltown, the road curves back to due east, beginning to follow the general pathway of old U.S. Highway 66, which it does all the way to downtown St. Louis. I-44 then goes around the western and northern sides of Springfield, serving as the western terminus of the James River Freeway, as well as crossing both Route 13 and U.S. Highway 65. The Interstate Highway continues northeast, bypassing Lebanon.

In Pulaski County, I-44 enters the Mark Twain National Forest, and then leaves it to provide access to Waynesville, St. Robert, and Fort Leonard Wood, before re-entering the national forest. The freeway leaves the forest in Phelps County west of Rolla. I-44 then goes through Rolla, where it meets U.S. Highway 63. It continues its northeast course, passing near St. James, Cuba, Bourbon, Sullivan, and Saint Clair.

I-44 near the west end of its concurrency with U.S. 50 in Franklin County.

I-44 next goes north of Pacific before moving into St. Louis County. I-44 then bisects Eureka before serving as the southern boundary of Route 66 State Park (the former site of Times Beach, known for its dioxin contamination and its eventual demolition and Superfund cleanup). I-44 then runs across unincorporated land before entering Fenton and having an interchange with Interstate 270 in Sunset Hills. I-44 then goes through Crestwood, Kirkwood, Oakland, Webster Groves, and Shrewsbury before entering the City of St. Louis. I-44 runs on a due east course through St. Louis until it meets Interstate 55 south of downtown. The two highways run concurrently for about two miles until I-55 turns east to cross the Mississippi River on the Poplar Street Bridge. I-44 then continues north through Downtown St. Louis on the former route of Interstate 70 to its junction with that highway at the Stan Musial Veterans Memorial Bridge.


I-44 follows the general route of, and completely replaced, historic U.S. Route 66 from Halltown (exit 58, the junction with a cut-off section of US 66 since renumbered as Route 96) to downtown St. Louis. From rural Joplin at exit 15 to Mount Vernon at exit 49, it largely follows a decommissioned section of U.S. Route 166.

A section of I-44 was moved slightly north between Powellville and Doolittle in 2005. The old alignment of the double-carriageway US 66 has since been demolished with the roadbed largely overgrown with vegetation, though evidence of the old alignment remains visible at both ends of the project. As of April 2006, the rocks That were carved away for the new roadbed virtually had no lichen, reflecting that this construction occurred rather recently. [2]

The eastern terminus of I-44 was changed when the Stan Musial Veterans Memorial Bridge opened in February 2014, rerouting I-70 over the river along a more northern alignment. I-44 now takes the old I-70 alignment through the below-grade section of roadway in St. Louis, making the new eastern terminus a merging interchange with I-70 near Cass Avenue.[3] The eastbound lanes of I-44 join the westbound lanes of I-70, and the westbound lanes of I-44 branch off the eastbound lanes of I-70.[3]

Business loops

All of Interstate 44's business loops are in Missouri. Most of these Business Loops were the former U.S. Route 66. Missouri also has the unusual occurrence of a business loop and business spur from the same interstate intersecting (the Waynesville-St. Robert loop and the Ft. Leonard Wood spur).

Exit list

Newton0.0000.000 / west - TulsaContinuation into Oklahoma
0.3480.5601 / west (Downstream Boulevard) - Baxter Springs
3.9876.4164 south - Seneca, JoplinWestern terminus of concurrency with Route 43
Joplin6.61810.6516 east / north /  - Racine, JoplinEastern terminus of concurrency with Route 43
8.81714.1908 (Range Line Road)Diverging diamond interchange[4]
Jasper11.67718.79211A south / south to Route FF - Neosho, Fort Smith, FayettevilleWestern terminus of concurrency with I-49 / US 71
11.88019.11911B north to  - Joplin
13.19021.22713Prigmor Road (CR 190) - JoplinOpened November 2015
15.48324.91715 west / west - DuenwegWestbound exit and eastbound entrance
Fidelity18.48129.74218 north / north / south - Carthage, Kansas City, DiamondEastern terminus of concurrency with I-49 / US 71; split into exits 18A (south) and 18B (north)
22.49736.20522CR 100
26.50742.65926 east /  - Sarcoxie, Reeds
29.92948.16629 west / Route U - Sarcoxie, La Russell
Lawrence33.51753.94033 To south (CR 1010)
38.49861.95738 - Pierce City, Stotts City
44.29871.29144 east / Route H - Mount Vernon, Monett
Mount Vernon46.93075.52746 west / /  - Mount Vernon, Aurora
49.72580.02549 - Chesapeake, Mount Vernon
58.13393.55657 - AvillaWestbound exit and eastbound entrance; former US 66 west
58.79694.62358 Route O / Route Z - Halltown
61.96499.72161 Route K / Route PP
Greene67.011107.84467 Route N / Route T - Republic, Bois D'Arc
68.958110.97769 east (James River Freeway) to
70.166112.92170 Route B / Route MM
72.472116.63272 east / (Chestnut Expressway)Former US 66
Springfield75.480121.47375 (West Bypass) - Willard
77.713125.06777 (Kansas Expressway) - BolivarFirst diverging diamond interchange in North America, existing interchange converted in 2009[5]
80.372129.34680 west (Glenstone Avenue) / Route H - Pleasant Hope
82.465132.71582 - Branson, SedaliaSigned as exits 82A (south) and 82B (north)
84.734136.36684 west
Strafford88.917143.09888 - Strafford, Fair Grove
Webster96.021154.53196 Route B - Northview
Marshfield100.938162.444100 / Route W - Marshfield
107.553173.090107Sampson Road / Sparkle Brook Road
LacledeConway113.230182.226113 Route J / Route Y - Conway
Phillipsburg118.027189.946118 Route A / Route C - PhillipsburgFormer US 66
123.011197.967123County Road
Lebanon127.207204.720127 east (Elm Street, Evergreen Pkwy) / Route W / Morgan RoadFormer US 66
129.057207.697129 / (Jefferson Avenue) to  - Hartville, Camdenton
130.160209.472130 west (Elm Street) / Route MM - Lebanon
135.239217.646135 Route F - SleeperFormer US 66
139.999225.307140 Route N / Route T - Stoutland
Pulaski145.711234.499145 / Route AB - Richland
150.630242.415150 / Route P - Richland, Laquey
153.411246.891153 - Buckhorn
Waynesville156.396251.695156 east / Route H - Waynesville, Fort Leonard Wood
St. Robert159.832257.225159 - St. Robert, WaynesvilleFormer US 66
161.160259.362161 west / Route Y - St. Robert, Fort Leonard Wood
163.836263.668163 - Dixon
169.086272.118169 Route J
Phelps172.574277.731172 Route D - Jerome, DixonNo westbound entrance
176.531284.099176Sugar Tree Road
Doolittle179.447288.792179 Route C / Route T - Newburg, Doolittle
Rolla184.579297.051184 east (Kingshighway) to south - RollaFormer US 66 east
185.651298.776185 Route E - Rolla
186.642300.371186 west / / (Bishop Avenue) - Rolla, Jefferson CityFormer US 66
189.744305.363189 Route V (Hy Point Industrial Park Drive)
St. James195.613314.809195 /  - St. JamesFormer US 66
Crawford203.388327.321203 Route F / Route ZZ
Cuba208.284335.201208 - Cuba, Owensville
210.782339.221210 Route UU
214.250344.802214 Route H - Leasburg
Bourbon218.492351.629218 Route C / Route J / Route N - Bourbon
FranklinSullivan224.286360.953225 north / Route D - Sullivan
225.831363.440226 south / Route AF - Sullivan, Potosi
230.240370.535230 Route W / Route JJ - Stanton
St. Clair238.816384.337239 / Route AB / Route WW - St. Clair
240.309386.740240 - St. Clair, Union
242.189389.765242 Route AH
247.088397.650247 west / Route O / Route AT - Union, Jefferson CityWestern terminus of concurrency with US 50
Villa Ridge251.485404.726251 west - WashingtonFormer US 66
Gray Summit253.289407.629253 east / east - Gray SummitFormer US 66
Pacific256.555412.885257 - Pacific
St. LouisEureka261.505420.852261 west / Six Flags Road - Allenton
264.459425.606264 - Eureka
265.262426.898265Williams RoadEastbound exit and entrance
266.557428.982266Lewis Road
268.788432.572269Beaumont Antire Road
272.385438.361272 - Fenton, Valley Park
Fenton273.844440.709274ABowles AvenueSigned as exit 274 westbound
274.664442.029274BMraz LaneEastbound exit and westbound entrance
275.630443.583275North Highway Drive / Soccer Park RoadWestbound exit and eastbound entrance
Sunset Hills275.872-
276 - Memphis, Chicago
277A east (Watson Road)Eastbound exit and westbound entrance; former US 66
Sunset Hills-Kirkwood
city line
277.619446.784277B east / / (Lindbergh Boulevard)Eastern terminus of concurrency with US 50
city line
278.634448.418278Big Bend Road
Oakland-Webster Groves line279.736450.191279Berry RoadWestbound exit and eastbound entrance
Webster Groves280.739451.806280Elm Avenue
Webster Groves-Shrewsbury line282.300454.318282Murdoch Avenue / Laclede Station RoadEastbound exit and westbound entrance
Shrewsbury282.485454.616283Shrewsbury AvenueWestbound exit and eastbound entrance
City of St. Louis284.175457.335284AJamieson AvenueEastbound exit and westbound entrance
284.432457.749284BArsenal StreetWestbound exit and eastbound entrance
284.800458.341285Southwest AvenueWestbound exit and eastbound entrance
285.602459.632286Hampton Avenue - Forest Park, Saint Louis Zoo
286.779461.526287AKingshighway Boulevard - Tower Grove ParkEastbound exit and westbound entrance
287.127462.086287BVandeventer Avenue - Missouri Botanical GardenAlso signed westbound for Kingshighway Boulevard
288.254463.900288Grand Boulevard - Saint Louis University Hospital
289.265465.527289Jefferson Avenue
290A south - MemphisWestern terminus of concurrency with I-55; eastbound exit and westbound entrance
290.123466.908290C12th Street / Gravois Avenue (Route 30)Westbound exit and eastbound entrance
290.296467.186290BLafayette AvenueEastbound exit and westbound entrance; former Route 755
290.591467.661290DPark Avenue / 7th Street
291A north / / east to east - IllinoisEastern terminus of concurrency with I-55; westbound exit and eastbound entrance
291.267468.749291BWalnut Street - Downtown, Gateway Arch, Busch StadiumEastbound exit and westbound entrance
291.369468.913292Lumiere Place Boulevard / Washington Avenue / Eads BridgeEastbound exit and westbound entrance
292.146470.163292AConvention Plaza / Martin L. King Bridge - IllinoisWestbound exit and eastbound entrance
I-70 Express LanesWestbound entrance only
292.605470.902292BBroadwayWestbound exit and eastbound entrance
292.919471.407293Madison Street / St. Louis AvenueEastbound exit only
293.183471.832 west - Kansas City
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


Route map: Google

KML is from Wikidata
  1. ^ a b Missouri Department of Transportation (January 5, 2015). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved 2015. 
  2. ^ Google (June 8, 2009). "Interstate 44 in Missouri" (Map). Google Maps. Google. Retrieved 2009. 
  3. ^ a b MoDOT Downtown St. Louis signing plans
  4. ^ Staff (July 20, 2013). "I-44 and Range Line interchange open". The Joplin Globe. Archived from the original on July 23, 2013. Retrieved 2013. 
  5. ^ Tang, Didi (2010-01-28). "Missouri test drives 'diverging diamond' interchange". USA Today. 

Interstate 44
Previous state:
Missouri Next state:

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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